(n) a polyvalent metallic element that resembles chromium and tungsten in its properties; used to strengthen and harden steel, Syn.atomic number 42, Mo
The Collaborative International Dictionary of English (GCIDE) v.0.53
n. [ Cf. F. molybdénite. See Molybdena. ] (Min.) A mineral occurring in soft, lead-gray, foliated masses or scales, resembling graphite; sulphide of molybdenum. [ 1913 Webster ]
n. [ NL.: cf. F. molybdène. See Molybdena. ] (Chem.) A rare element of the chromium group, occurring in nature in the minerals molybdenite and wulfenite, and when reduced obtained as a hard, silver-white, difficulty fusible metal. Symbol Mo. Atomic number 42. Atomic weight 95.94. [ 1913 Webster +PJC ]
a. [ Cf. F. molybdique. See molybdena. ] (Chem.) Of, pertaining to, or containing, molybdenum; specif., designating those compounds in which the element has a higher valence, as contrasted with molybdous compounds; as, molybdic oxide. [ 1913 Webster ]
a. [ See Molybdena. ] Of, pertaining to, or containing, molybdenum; specif., designating those compounds in which molybdenum has a lower valence as contrasted with molybdic compounds. [ 1913 Webster ]
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